[experiment] `-Ztrait-solver=next-coherence` but hacks that make things not fail anymore #113991

compiler-errors · 2023-07-24T03:00:46Z

i am not endorsing this, just checking how many of these failures are due to inductive cycles being treated as "may not apply" 06409c806e58432eb6a4398792e924a693a4a6b0.

also skipping aliases in assemble_coherence_unknowable_candidates (let's just try the self type first, 57443cdd353eeb27dfb4d9955a0c63ae0f3cc63c)

r? @ghost

compiler-errors · 2023-07-24T03:00:52Z

@bors try

bors · 2023-07-24T03:01:03Z

⌛ Trying commit e4ce0193dfe3bf8f8480df603e8e23a4ba1868ad with merge eba0caf10bb3b7a1920567f58003d191affe4aac...

compiler-errors · 2023-07-24T03:01:25Z

for myself for later:

@ craterbot run mode=check-only crates=https://crater-reports.s3.amazonaws.com/pr-113895-1/retry-regressed-list.txt

bors · 2023-07-24T04:18:44Z

☀️ Try build successful - checks-actions
Build commit: eba0caf10bb3b7a1920567f58003d191affe4aac (eba0caf10bb3b7a1920567f58003d191affe4aac)

compiler-errors · 2023-07-24T05:00:21Z

@craterbot run mode=check-only crates=https://crater-reports.s3.amazonaws.com/pr-113895-1/retry-regressed-list.txt

craterbot · 2023-07-24T05:00:24Z

👌 Experiment pr-113991 created and queued.
🤖 Automatically detected try build eba0caf10bb3b7a1920567f58003d191affe4aac
🔍 You can check out the queue and this experiment's details.

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

craterbot · 2023-07-24T05:00:42Z

🚧 Experiment pr-113991 is now running

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

craterbot · 2023-07-24T05:16:58Z

🎉 Experiment pr-113991 is completed!
📊 104 regressed and 0 fixed (115 total)
📰 Open the full report.

⚠️ If you notice any spurious failure please add them to the blacklist!
ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

compiler-errors · 2023-07-24T15:39:35Z

@bors try

bors · 2023-07-24T15:39:43Z

⌛ Trying commit 57443cdd353eeb27dfb4d9955a0c63ae0f3cc63c with merge 92ba2ff79d7a80af24d063a439f8271726e607d7...

bors · 2023-07-24T16:57:09Z

☀️ Try build successful - checks-actions
Build commit: 92ba2ff79d7a80af24d063a439f8271726e607d7 (92ba2ff79d7a80af24d063a439f8271726e607d7)

compiler-errors · 2023-07-24T18:06:37Z

@craterbot run mode=check-only crates=https://crater-reports.s3.amazonaws.com/pr-113895-1/retry-regressed-list.txt

craterbot · 2023-07-24T18:06:41Z

👌 Experiment pr-113991-1 created and queued.
🤖 Automatically detected try build 92ba2ff79d7a80af24d063a439f8271726e607d7
🔍 You can check out the queue and this experiment's details.

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

craterbot · 2023-07-24T18:06:55Z

🚧 Experiment pr-113991-1 is now running

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

craterbot · 2023-07-24T18:17:12Z

🎉 Experiment pr-113991-1 is completed!
📊 10 regressed and 1 fixed (115 total)
📰 Open the full report.

⚠️ If you notice any spurious failure please add them to the blacklist!
ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

compiler-errors · 2023-07-24T20:00:36Z

@bors try

bors · 2023-07-24T20:00:44Z

⌛ Trying commit d667549 with merge 93b7365ab3319a5c4a78362e458267d6348b7ef2...

rust-log-analyzer · 2023-07-24T20:08:58Z

The job x86_64-gnu-llvm-14 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

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---- [ui] tests/ui/associated-types/associated-types-coherence-failure.rs stdout ----
diff of stderr:

- error[E0119]: conflicting implementations of trait `IntoCow<'_, _>` for type `Cow<'_, _>`
+ error[E0119]: conflicting implementations of trait `IntoCow<'_, _>` for type `<_ as ToOwned>::Owned`
3    |
3    |
4 LL | impl<'a, B: ?Sized> IntoCow<'a, B> for <B as ToOwned>::Owned where B: ToOwned {
5    | ------------------------------------------------------------ first implementation here
6 ...
6 ...
7 LL | impl<'a, B: ?Sized> IntoCow<'a, B> for Cow<'a, B> where B: ToOwned {
-    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Cow<'_, _>`
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `<_ as ToOwned>::Owned`
9 
- error[E0119]: conflicting implementations of trait `IntoCow<'_, _>` for type `&_`
+ error[E0119]: conflicting implementations of trait `IntoCow<'_, _>` for type `<_ as ToOwned>::Owned`
12    |
12    |
13 LL | impl<'a, B: ?Sized> IntoCow<'a, B> for <B as ToOwned>::Owned where B: ToOwned {
14    | ------------------------------------------------------------ first implementation here
15 ...
15 ...
16 LL | impl<'a, B: ?Sized> IntoCow<'a, B> for &'a B where B: ToOwned {
-    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `&_`
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `<_ as ToOwned>::Owned`
19 error: aborting due to 2 previous errors
20 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-types/associated-types-coherence-failure/associated-types-coherence-failure.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args associated-types/associated-types-coherence-failure.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/associated-types/associated-types-coherence-failure.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-types/associated-types-coherence-failure" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-types/associated-types-coherence-failure/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `IntoCow<'_, _>` for type `<_ as ToOwned>::Owned`
##[error]  --> fake-test-src-base/associated-types/associated-types-coherence-failure.rs:21:1
   |
LL | impl<'a, B: ?Sized> IntoCow<'a, B> for <B as ToOwned>::Owned where B: ToOwned {
...
...
LL | impl<'a, B: ?Sized> IntoCow<'a, B> for Cow<'a, B> where B: ToOwned {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `<_ as ToOwned>::Owned`

error[E0119]: conflicting implementations of trait `IntoCow<'_, _>` for type `<_ as ToOwned>::Owned`
##[error]  --> fake-test-src-base/associated-types/associated-types-coherence-failure.rs:28:1
   |
LL | impl<'a, B: ?Sized> IntoCow<'a, B> for <B as ToOwned>::Owned where B: ToOwned {
...
...
LL | impl<'a, B: ?Sized> IntoCow<'a, B> for &'a B where B: ToOwned {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `<_ as ToOwned>::Owned`
error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/codemap_tests/overlapping_inherent_impls.rs stdout ----
diff of stderr:

24 ...
25 LL |     fn baz(&self) {}
26    |     ------------- other definition for `baz`
-    |
-    = note: upstream crates may add a new impl of trait `std::marker::Copy` for type `std::vec::Vec<_>` in future versions
30 error: aborting due to 3 previous errors
31 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/codemap_tests/overlapping_inherent_impls/overlapping_inherent_impls.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args codemap_tests/overlapping_inherent_impls.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/codemap_tests/overlapping_inherent_impls.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/codemap_tests/overlapping_inherent_impls" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/codemap_tests/overlapping_inherent_impls/auxiliary"
stdout: none
error[E0592]: duplicate definitions with name `id`
##[error]  --> fake-test-src-base/codemap_tests/overlapping_inherent_impls.rs:9:5
   |
   |
LL |     fn id() {} //~ ERROR duplicate definitions
   |     ^^^^^^^ duplicate definitions for `id`
LL |     fn id() {}
   |     ------- other definition for `id`

error[E0592]: duplicate definitions with name `bar`
error[E0592]: duplicate definitions with name `bar`
##[error]  --> fake-test-src-base/codemap_tests/overlapping_inherent_impls.rs:19:5
   |
LL |     fn bar(&self) {} //~ ERROR duplicate definitions
   |     ^^^^^^^^^^^^^ duplicate definitions for `bar`
LL |     fn bar(&self) {}
   |     ------------- other definition for `bar`

error[E0592]: duplicate definitions with name `baz`
error[E0592]: duplicate definitions with name `baz`
##[error]  --> fake-test-src-base/codemap_tests/overlapping_inherent_impls.rs:29:5
   |
LL |     fn baz(&self) {} //~ ERROR duplicate definitions
   |     ^^^^^^^^^^^^^ duplicate definitions for `baz`
...
LL |     fn baz(&self) {}
   |     ------------- other definition for `baz`
Build completed unsuccessfully in 0:11:07
error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0592`.
For more information about this error, try `rustc --explain E0592`.
------------------------------------------


---- [ui] tests/ui/coherence/coherence-overlap-downstream-inherent.rs stdout ----
diff of stderr:

15 LL |
16 LL | impl<X> A<i32, X> { fn f(&self) {} }
17    |                     ----------- other definition for `f`
-    |
-    = note: downstream crates may implement trait `Bar<_>` for type `i32`
21 error: aborting due to 2 previous errors
22 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-downstream-inherent/coherence-overlap-downstream-inherent.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-overlap-downstream-inherent.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-overlap-downstream-inherent.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-downstream-inherent" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-downstream-inherent/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0592]: duplicate definitions with name `dummy`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-downstream-inherent.rs:7:26
   |
LL | impl<T:Sugar> Sweet<T> { fn dummy(&self) { } }
   |                          ^^^^^^^^^^^^^^^ duplicate definitions for `dummy`
LL | //~^ ERROR E0592
LL | impl<T:Fruit> Sweet<T> { fn dummy(&self) { } }
   |                          --------------- other definition for `dummy`
error[E0592]: duplicate definitions with name `f`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-downstream-inherent.rs:13:38
   |
   |
LL | impl<X, T> A<T, X> where T: Bar<X> { fn f(&self) {} }
   |                                      ^^^^^^^^^^^ duplicate definitions for `f`
LL | //~^ ERROR E0592
LL | impl<X> A<i32, X> { fn f(&self) {} }
   |                     ----------- other definition for `f`
error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0592`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/coherence/coherence-overlap-issue-23516-inherent.rs stdout ----
diff of stderr:

6 LL |
7 LL | impl<U:Sugar> Cake<Box<U>> { fn dummy(&self) { } }
8    |                              --------------- other definition for `dummy`
-    |
-    = note: downstream crates may implement trait `Sugar` for type `std::boxed::Box<_>`
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-issue-23516-inherent/coherence-overlap-issue-23516-inherent.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-overlap-issue-23516-inherent.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-overlap-issue-23516-inherent.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-issue-23516-inherent" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-issue-23516-inherent/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0592]: duplicate definitions with name `dummy`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-issue-23516-inherent.rs:9:25
   |
LL | impl<T:Sugar> Cake<T> { fn dummy(&self) { } }
   |                         ^^^^^^^^^^^^^^^ duplicate definitions for `dummy`
LL | //~^ ERROR E0592
LL | impl<U:Sugar> Cake<Box<U>> { fn dummy(&self) { } }
   |                              --------------- other definition for `dummy`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0592`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/coherence/coherence-overlap-downstream.rs stdout ----
diff of stderr:

13    | ----------------------- first implementation here
14 LL | impl<X> Foo<X> for i32 {}
-    |
-    |
-    = note: downstream crates may implement trait `Bar<_>` for type `i32`
19 error: aborting due to 2 previous errors
20 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-downstream/coherence-overlap-downstream.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-overlap-downstream.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-overlap-downstream.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-downstream" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-downstream/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `Sweet`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-downstream.rs:8:1
   |
LL | impl<T:Sugar> Sweet for T { }
   | ------------------------- first implementation here
LL | impl<T:Fruit> Sweet for T { }


error[E0119]: conflicting implementations of trait `Foo<_>` for type `i32`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-downstream.rs:14:1
   |
LL | impl<X, T> Foo<X> for T where T: Bar<X> {}
   | ----------------------- first implementation here
LL | impl<X> Foo<X> for i32 {}

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0119`.
For more information about this error, try `rustc --explain E0119`.
------------------------------------------


---- [ui] tests/ui/coherence/coherence-overlap-issue-23516.rs stdout ----
diff of stderr:

5    | ------------------------- first implementation here
6 LL | impl<U:Sugar> Sweet for Box<U> { }
7    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Box<_>`
-    |
-    = note: downstream crates may implement trait `Sugar` for type `std::boxed::Box<_>`
11 error: aborting due to previous error
12 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-issue-23516/coherence-overlap-issue-23516.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-overlap-issue-23516.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-overlap-issue-23516.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-issue-23516" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-issue-23516/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `Sweet` for type `Box<_>`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-issue-23516.rs:8:1
   |
LL | impl<T:Sugar> Sweet for T { }
   | ------------------------- first implementation here
LL | impl<U:Sugar> Sweet for Box<U> { }
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Box<_>`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/coherence/coherence-projection-conflict-orphan.rs stdout ----
diff of stderr:

6 LL |
7 LL | impl<A:Iterator> Foo<A::Item> for A { }
-    |
-    |
-    = note: upstream crates may add a new impl of trait `std::iter::Iterator` for type `i32` in future versions
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-projection-conflict-orphan/coherence-projection-conflict-orphan.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-projection-conflict-orphan.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-projection-conflict-orphan.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-projection-conflict-orphan" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-projection-conflict-orphan/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `Foo<i32>` for type `i32`
##[error]  --> fake-test-src-base/coherence/coherence-projection-conflict-orphan.rs:16:1
   |
LL | impl Foo<i32> for i32 { }
LL |
LL |
LL | impl<A:Iterator> Foo<A::Item> for A { }

error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
---
5    | ----------------- first implementation here
6 LL | impl Foo for i16 {}
7    | ^^^^^^^^^^^^^^^^ conflicting implementation for `i16`
-    |
-    = note: upstream crates may add a new impl of trait `coherence_lib::Remote` for type `i16` in future versions
11 error: aborting due to previous error
12 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-upstream/coherence-overlap-upstream.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-overlap-upstream.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-overlap-upstream.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-upstream" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-upstream/auxiliary"
stdout: none
error[E0119]: conflicting implementations of trait `Foo` for type `i16`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-upstream.rs:13:1
   |
   |
LL | impl<T> Foo for T where T: Remote {}
LL | impl Foo for i16 {}
   | ^^^^^^^^^^^^^^^^ conflicting implementation for `i16`

error: aborting due to previous error
---

9    |
10    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
11    = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105>
-    = note: downstream crates may implement trait `FromWasmAbi` for type `&_`
13    = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details
15   --> $DIR/coherence-wasm-bindgen.rs:10:9


The actual stderr differed from the expected stderr.
The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-wasm-bindgen/coherence-wasm-bindgen.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-wasm-bindgen.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-wasm-bindgen.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-wasm-bindgen" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-wasm-bindgen/auxiliary"
stdout: none
--- stderr -------------------------------
error: conflicting implementations of trait `IntoWasmAbi` for type `&dyn Fn(&_) -> _`
##[error]  --> fake-test-src-base/coherence/coherence-wasm-bindgen.rs:28:1
   |
LL | impl<'a, 'b, A, R> IntoWasmAbi for &'a (dyn Fn(A) -> R + 'b)
...
...
LL | impl<'a, 'b, A, R> IntoWasmAbi for &'a (dyn for<'x> Fn(&'x A) -> R + 'b)
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `&dyn Fn(&_) -> _`
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105>
   = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105>
   = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details
  --> fake-test-src-base/coherence/coherence-wasm-bindgen.rs:10:9
   |
LL | #![deny(coherence_leak_check)]
   |         ^^^^^^^^^^^^^^^^^^^^
---
---- [ui] tests/ui/coherence/coherence-overlap-upstream-inherent.rs stdout ----
diff of stderr:

6 LL |
7 LL | impl A<i16> { fn dummy(&self) { } }
8    |               --------------- other definition for `dummy`
-    |
-    = note: upstream crates may add a new impl of trait `coherence_lib::Remote` for type `i16` in future versions
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-upstream-inherent/coherence-overlap-upstream-inherent.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence-overlap-upstream-inherent.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence-overlap-upstream-inherent.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-upstream-inherent" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence-overlap-upstream-inherent/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0592]: duplicate definitions with name `dummy`
##[error]  --> fake-test-src-base/coherence/coherence-overlap-upstream-inherent.rs:12:32
   |
LL | impl<T> A<T> where T: Remote { fn dummy(&self) { } }
   |                                ^^^^^^^^^^^^^^^ duplicate definitions for `dummy`
LL | //~^ ERROR E0592
LL | impl A<i16> { fn dummy(&self) { } }
   |               --------------- other definition for `dummy`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0592`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/coherence/coherence_copy_like_err_struct.rs stdout ----
diff of stderr:

6 ...
7 LL | impl MyTrait for lib::MyStruct<MyType> { }
8    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MyStruct<MyType>`
-    |
-    = note: upstream crates may add a new impl of trait `lib::MyCopy` for type `lib::MyStruct<MyType>` in future versions
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_struct/coherence_copy_like_err_struct.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence_copy_like_err_struct.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence_copy_like_err_struct.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_struct" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_struct/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `MyTrait` for type `MyStruct<MyType>`
##[error]  --> fake-test-src-base/coherence/coherence_copy_like_err_struct.rs:19:1
   |
LL | impl<T: lib::MyCopy> MyTrait for T { }
...
...
LL | impl MyTrait for lib::MyStruct<MyType> { }
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MyStruct<MyType>`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/coherence/coherence_copy_like_err_tuple.rs stdout ----
diff of stderr:

6 ...
7 LL | impl MyTrait for (MyType,) { }
8    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(MyType,)`
-    |
-    = note: upstream crates may add a new impl of trait `lib::MyCopy` for type `(MyType,)` in future versions
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_tuple/coherence_copy_like_err_tuple.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence_copy_like_err_tuple.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence_copy_like_err_tuple.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_tuple" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_tuple/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `MyTrait` for type `(MyType,)`
##[error]  --> fake-test-src-base/coherence/coherence_copy_like_err_tuple.rs:18:1
   |
LL | impl<T: lib::MyCopy> MyTrait for T { }
...
...
LL | impl MyTrait for (MyType,) { }
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(MyType,)`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/coherence/coherence_copy_like_err_fundamental_struct_tuple.rs stdout ----
diff of stderr:

6 ...
7 LL | impl MyTrait for lib::MyFundamentalStruct<(MyType,)> { }
8    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MyFundamentalStruct<(MyType,)>`
-    |
-    = note: upstream crates may add a new impl of trait `lib::MyCopy` for type `lib::MyFundamentalStruct<(MyType,)>` in future versions
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_fundamental_struct_tuple/coherence_copy_like_err_fundamental_struct_tuple.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/coherence_copy_like_err_fundamental_struct_tuple.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/coherence_copy_like_err_fundamental_struct_tuple.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_fundamental_struct_tuple" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/coherence_copy_like_err_fundamental_struct_tuple/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `MyTrait` for type `MyFundamentalStruct<(MyType,)>`
##[error]  --> fake-test-src-base/coherence/coherence_copy_like_err_fundamental_struct_tuple.rs:16:1
   |
LL | impl<T: lib::MyCopy> MyTrait for T { }
...
...
LL | impl MyTrait for lib::MyFundamentalStruct<(MyType,)> { }
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MyFundamentalStruct<(MyType,)>`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/coherence/inter-crate-ambiguity-causes-notes.rs stdout ----
diff of stderr:

6 ...
7 LL | impl<I> From<I> for S
8    | ^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `S`
-    |
-    = note: upstream crates may add a new impl of trait `std::iter::Iterator` for type `()` in future versions
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/inter-crate-ambiguity-causes-notes/inter-crate-ambiguity-causes-notes.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args coherence/inter-crate-ambiguity-causes-notes.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/coherence/inter-crate-ambiguity-causes-notes.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/inter-crate-ambiguity-causes-notes" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/coherence/inter-crate-ambiguity-causes-notes/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `From<()>` for type `S`
##[error]  --> fake-test-src-base/coherence/inter-crate-ambiguity-causes-notes.rs:9:1
   |
LL | impl From<()> for S {
...
...
LL | impl<I> From<I> for S
   | ^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `S`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/dyn-star/param-env-region-infer.rs#next stdout ----
diff of stderr:

25    | |____________^
26    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
- error: aborting due to previous error
- error: aborting due to previous error
+ error[E0275]: overflow evaluating the requirement `impl PointerLike + Debug + 'a <: impl PointerLike + Debug + 'a`
+    |
+ LL |     t as _
+    |     ^^^^^^
+    |
+    |
+    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`param_env_region_infer`)
- For more information about this error, try `rustc --explain E0391`.
+ error: aborting due to 2 previous errors
+ 
+ Some errors have detailed explanations: E0275, E0391.
+ Some errors have detailed explanations: E0275, E0391.
+ For more information about an error, try `rustc --explain E0275`.
31 


The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/dyn-star/param-env-region-infer.next/param-env-region-infer.next.stderr
To only update this specific test, also pass `--test-args dyn-star/param-env-region-infer.rs`

error in revision `next`: 1 errors occurred comparing output.
status: exit status: 1
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/dyn-star/param-env-region-infer.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "next" "-C" "incremental=/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/dyn-star/param-env-region-infer.next/param-env-region-infer.inc" "-Z" "incremental-verify-ich" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/dyn-star/param-env-region-infer.next" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/dyn-star/param-env-region-infer.next/auxiliary" "-Ztrait-solver=next" "-Zdeduplicate-diagnostics=yes"
stdout: none
--- stderr -------------------------------
error[E0391]: cycle detected when computing type of `make_dyn_star::{opaque#0}`
##[error]  --> fake-test-src-base/dyn-star/param-env-region-infer.rs:16:60
   |
LL | fn make_dyn_star<'a, T: PointerLike + Debug + 'a>(t: T) -> impl PointerLike + Debug + 'a {
   |
   |
note: ...which requires type-checking `make_dyn_star`...
  --> fake-test-src-base/dyn-star/param-env-region-infer.rs:16:1
   |
LL | fn make_dyn_star<'a, T: PointerLike + Debug + 'a>(t: T) -> impl PointerLike + Debug + 'a {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: ...which requires computing layout of `make_dyn_star::{opaque#0}`...
   = note: ...which requires normalizing `make_dyn_star::{opaque#0}`...
   = note: ...which again requires computing type of `make_dyn_star::{opaque#0}`, completing the cycle
note: cycle used when checking item types in top-level module
  --> fake-test-src-base/dyn-star/param-env-region-infer.rs:10:1
   |
LL | / #![feature(dyn_star, pointer_like_trait)]
LL | | #![allow(incomplete_features)]
LL | | use std::fmt::Debug;
...  |
LL | |
LL | | fn main() {}
LL | | fn main() {}
   | |____________^
   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information

error[E0275]: overflow evaluating the requirement `impl PointerLike + Debug + 'a <: impl PointerLike + Debug + 'a`
##[error]  --> fake-test-src-base/dyn-star/param-env-region-infer.rs:18:5
LL |     t as _
   |     ^^^^^^
   |
   |
   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`param_env_region_infer`)
error: aborting due to 2 previous errors

Some errors have detailed explanations: E0275, E0391.
For more information about an error, try `rustc --explain E0275`.
For more information about an error, try `rustc --explain E0275`.
------------------------------------------


---- [ui] tests/ui/impl-trait/negative-reasoning.rs stdout ----
diff of stderr:

6 ...
7 LL | impl AnotherTrait for D<OpaqueType> {
8    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `D<OpaqueType>`
-    |
-    = note: upstream crates may add a new impl of trait `std::fmt::Debug` for type `OpaqueType` in future versions
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/impl-trait/negative-reasoning/negative-reasoning.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args impl-trait/negative-reasoning.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/impl-trait/negative-reasoning.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/impl-trait/negative-reasoning" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/impl-trait/negative-reasoning/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `AnotherTrait` for type `D<OpaqueType>`
##[error]  --> fake-test-src-base/impl-trait/negative-reasoning.rs:19:1
   |
LL | impl<T: std::fmt::Debug> AnotherTrait for T {}
...
...
LL | impl AnotherTrait for D<OpaqueType> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `D<OpaqueType>`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/issues/issue-43355.rs stdout ----
diff of stderr:

6 ...
7 LL | impl<X> Trait1<Box<X>> for A {
8    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `A`
-    |
-    = note: downstream crates may implement trait `Trait2<std::boxed::Box<_>>` for type `A`
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-43355/issue-43355.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args issues/issue-43355.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/issues/issue-43355.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-43355" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-43355/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `Trait1<Box<_>>` for type `A`
##[error]  --> fake-test-src-base/issues/issue-43355.rs:13:1
   |
LL | impl<X, T> Trait1<X> for T where T: Trait2<X> {
...
...
LL | impl<X> Trait1<Box<X>> for A {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `A`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/issues/issue-48728.rs stdout ----
diff of stderr:

7 LL | impl<T: Clone + ?Sized> Clone for Node<[T]> {
9    |
9    |
-    = note: upstream crates may add a new impl of trait `std::clone::Clone` for type `[_]` in future versions
12 
13 error: aborting due to previous error



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-48728/issue-48728.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args issues/issue-48728.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/issues/issue-48728.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-48728" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-48728/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `Clone` for type `Node<[_]>`
##[error]  --> fake-test-src-base/issues/issue-48728.rs:4:10
   |
LL | #[derive(Clone)] //~ ERROR conflicting implementations of trait `Clone`
   |          ^^^^^ conflicting implementation for `Node<[_]>`
...
LL | impl<T: Clone + ?Sized> Clone for Node<[T]> {
   |
   = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to previous error
---

---- [ui] tests/ui/never_type/never-from-impl-is-reserved.rs stdout ----
diff of stderr:

6 LL | // This will conflict with the first impl if we impl `for<T> T: From<!>`.
7 LL | impl<T> MyTrait for T where T: From<!> {}
8    | ^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MyFoo`
-    |
-    = note: permitting this impl would forbid us from adding `impl<T> From<!> for T` later; see rust-lang/rust#64715 for details
12 error: aborting due to previous error
13 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/never_type/never-from-impl-is-reserved/never-from-impl-is-reserved.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args never_type/never-from-impl-is-reserved.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/never_type/never-from-impl-is-reserved.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/never_type/never-from-impl-is-reserved" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/never_type/never-from-impl-is-reserved/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `MyTrait` for type `MyFoo`
##[error]  --> fake-test-src-base/never_type/never-from-impl-is-reserved.rs:10:1
   |
LL | impl MyTrait for MyFoo {}
   | ---------------------- first implementation here
LL | // This will conflict with the first impl if we impl `for<T> T: From<!>`.
LL | impl<T> MyTrait for T where T: From<!> {} //~ ERROR conflicting implementation
   | ^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MyFoo`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/specialization/defaultimpl/overlap-projection.rs stdout ----

error: test compilation failed although it shouldn't!
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/specialization/defaultimpl/overlap-projection.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "-O" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/defaultimpl/overlap-projection/a" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/defaultimpl/overlap-projection/auxiliary"
stdout: none
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
##[warning]  --> fake-test-src-base/specialization/defaultimpl/overlap-projection.rs:7:12
   |
   |
LL | #![feature(specialization)] //~ WARN the feature `specialization` is incomplete
   |
   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
   = help: consider using `min_specialization` instead, which is more stable and complete
   = note: `#[warn(incomplete_features)]` on by default
   = note: `#[warn(incomplete_features)]` on by default

error[E0119]: conflicting implementations of trait `Foo` for type `u32`
##[error]  --> fake-test-src-base/specialization/defaultimpl/overlap-projection.rs:22:1
   |
LL | impl Foo for u32 {}
   | ---------------- first implementation here
LL | impl Foo for <u8 as Assoc>::Output {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32`
error[E0119]: conflicting implementations of trait `Foo` for type `u32`
##[error]  --> fake-test-src-base/specialization/defaultimpl/overlap-projection.rs:23:1
   |
LL | impl Foo for u32 {}
LL | impl Foo for u32 {}
   | ---------------- first implementation here
LL | impl Foo for <u8 as Assoc>::Output {}
LL | impl Foo for <u16 as Assoc>::Output {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32`
error: aborting due to 2 previous errors; 1 warning emitted

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/specialization/issue-52050.rs stdout ----
diff of stderr:

16 ...
17 LL | impl IntoPyDictPointer for ()
18    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `()`
-    |
-    = note: upstream crates may add a new impl of trait `std::iter::Iterator` for type `()` in future versions
22 error: aborting due to previous error; 1 warning emitted
23 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/issue-52050/issue-52050.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args specialization/issue-52050.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/specialization/issue-52050.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/issue-52050" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/issue-52050/auxiliary"
stdout: none
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
##[warning]  --> fake-test-src-base/specialization/issue-52050.rs:1:12
   |
   |
LL | #![feature(specialization)] //~ WARN the feature `specialization` is incomplete
   |
   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
   = help: consider using `min_specialization` instead, which is more stable and complete
   = note: `#[warn(incomplete_features)]` on by default
   = note: `#[warn(incomplete_features)]` on by default

error[E0119]: conflicting implementations of trait `IntoPyDictPointer` for type `()`
##[error]  --> fake-test-src-base/specialization/issue-52050.rs:28:1
   |
LL | impl<I> IntoPyDictPointer for I
...
...
LL | impl IntoPyDictPointer for () //~ ERROR conflicting implementations
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `()`
error: aborting due to previous error; 1 warning emitted

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/specialization/specialization-default-items-drop-coherence.rs#classic stdout ----

error in revision `classic`: test compilation failed although it shouldn't!
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/specialization/specialization-default-items-drop-coherence.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "classic" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/specialization-default-items-drop-coherence.classic" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/specialization-default-items-drop-coherence.classic/auxiliary"
stdout: none
error[E0119]: conflicting implementations of trait `Overlap` for type `u32`
##[error]  --> fake-test-src-base/specialization/specialization-default-items-drop-coherence.rs:29:1
   |
   |
LL | impl Overlap for u32 {
...
...
LL | impl Overlap for <u32 as Default>::Id {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/specialization/specialization-overlap-projection.rs stdout ----

error: test compilation failed although it shouldn't!
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/specialization/specialization-overlap-projection.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "-O" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/specialization-overlap-projection/a" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/specialization/specialization-overlap-projection/auxiliary"
stdout: none
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
##[warning]  --> fake-test-src-base/specialization/specialization-overlap-projection.rs:7:12
   |
   |
LL | #![feature(specialization)] //~ WARN the feature `specialization` is incomplete
   |
   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
   = help: consider using `min_specialization` instead, which is more stable and complete
   = note: `#[warn(incomplete_features)]` on by default
   = note: `#[warn(incomplete_features)]` on by default

error[E0119]: conflicting implementations of trait `Foo` for type `u32`
##[error]  --> fake-test-src-base/specialization/specialization-overlap-projection.rs:22:1
   |
LL | impl Foo for u32 {}
   | ---------------- first implementation here
LL | impl Foo for <u8 as Assoc>::Output {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32`
error[E0119]: conflicting implementations of trait `Foo` for type `u32`
##[error]  --> fake-test-src-base/specialization/specialization-overlap-projection.rs:23:1
   |
LL | impl Foo for u32 {}
LL | impl Foo for u32 {}
   | ---------------- first implementation here
LL | impl Foo for <u8 as Assoc>::Output {}
LL | impl Foo for <u16 as Assoc>::Output {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32`
error: aborting due to 2 previous errors; 1 warning emitted

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/traits/issue-105231.rs stdout ----
diff of stderr:

14 LL ~ struct B<T>(Box<A<A<T>>>);
16 
16 
- error[E0275]: overflow evaluating the requirement `A<A<A<A<A<A<A<...>>>>>>>: Send`
+ error[E0119]: conflicting implementations of trait `Foo` for type `B<u8>`
18    |
18    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_105231`)
- note: required because it appears within the type `B<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<A<u8>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>`
-   --> $DIR/issue-105231.rs:4:8
-    |
- LL | struct B<T>(A<A<T>>);
-    |        ^
+ LL | impl<T> Foo for T where T: Send {}
+    | ----------------- first implementation here
+ LL | impl Foo for B<u8> {}
+    | ^^^^^^^^^^^^^^^^^^ conflicting implementation for `B<u8>`
26 error: aborting due to 2 previous errors
27 

- Some errors have detailed explanations: E0072, E0275.
---
To only update this specific test, also pass `--test-args traits/issue-105231.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/traits/issue-105231.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/issue-105231" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/issue-105231/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0072]: recursive types `A` and `B` have infinite size
##[error]  --> fake-test-src-base/traits/issue-105231.rs:2:1
   |
LL | struct A<T>(B<T>);
   | ^^^^^^^^^^^ ---- recursive without indirection
LL | //~^ ERROR recursive types `A` and `B` have infinite size
LL | struct B<T>(A<A<T>>);
   | ^^^^^^^^^^^ ------- recursive without indirection
   |
help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
   |
LL ~ struct A<T>(Box<B<T>>);
LL | //~^ ERROR recursive types `A` and `B` have infinite size
LL ~ struct B<T>(Box<A<A<T>>>);


error[E0119]: conflicting implementations of trait `Foo` for type `B<u8>`
##[error]  --> fake-test-src-base/traits/issue-105231.rs:7:1
   |
LL | impl<T> Foo for T where T: Send {}
   | ----------------- first implementation here
LL | impl Foo for B<u8> {}
   | ^^^^^^^^^^^^^^^^^^ conflicting implementation for `B<u8>`
error: aborting due to 2 previous errors

Some errors have detailed explanations: E0072, E0119.
For more information about an error, try `rustc --explain E0072`.
For more information about an error, try `rustc --explain E0072`.
------------------------------------------


---- [ui] tests/ui/traits/new-solver/alias-bound-unsound.rs stdout ----
diff of stderr:

- error[E0275]: overflow evaluating the requirement `<() as Foo>::Item: Copy`
+ error[E0277]: the trait bound `<() as Foo>::Item: Copy` is not satisfied
3    |
4 LL |     type Item = String where String: Copy;

-    |                 ^^^^^^
-    |                 ^^^^^^
+    |                 ^^^^^^ the trait `Copy` is not implemented for `<() as Foo>::Item`
6    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`)
8 note: required by a bound in `Foo::Item`
10    |

11 LL |     type Item: Copy
12    |                ^^^^ required by this bound in `Foo::Item`
12    |                ^^^^ required by this bound in `Foo::Item`
13 
- error[E0282]: type annotations needed
-   --> $DIR/alias-bound-unsound.rs:24:5
-    |
- LL |     drop(<() as Foo>::copy_me(&x));
-    |     ^^^^ cannot infer type of the type parameter `T` declared on the function `drop`
- help: consider specifying the generic argument
-    |
-    |
- LL |     drop::<T>(<() as Foo>::copy_me(&x));
- 
- 
- error[E0275]: overflow evaluating the requirement `&<() as Foo>::Item well-formed`
+ error: the type `&<() as Foo>::Item` is not well-formed
27    |
27    |
28 LL |     drop(<() as Foo>::copy_me(&x));
29    |                               ^^
-    |
-    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`)
32 
- error[E0275]: overflow evaluating the requirement `String <: <() as Foo>::Item`
+ error[E0308]: mismatched types
35    |
35    |
36 LL |     drop(<() as Foo>::copy_me(&x));
-    |                               ^^
+    |          -------------------- ^^ types differ
+    |          |
+    |          arguments to this function are incorrect
+    |          arguments to this function are incorrect
38    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`)
+    = note: expected reference `&<() as Foo>::Item`
+ note: associated function defined here
+   --> $DIR/alias-bound-unsound.rs:12:8
+    |
+    |
+ LL |     fn copy_me(x: &Self::Item) -> Self::Item {
40 
40 
- error[E0275]: overflow evaluating the requirement `<() as Foo>::Item well-formed`
+ error: the type `<() as Foo>::Item` is not well-formed
43    |
43    |
44 LL |     drop(<() as Foo>::copy_me(&x));
45    |          ^^^^^^^^^^^^^^^^^^^^^^^^
+ 
+ 
+ error[E0277]: the size for values of type `<() as Foo>::Item` cannot be known at compilation time
46    |
46    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`)
+ LL |     drop(<() as Foo>::copy_me(&x));
+    |     |
+    |     required by a bound introduced by this call
+    |
+    |
+    = help: the trait `Sized` is not implemented for `<() as Foo>::Item`
+ note: required by a bound in `std::mem::drop`
+   --> $SRC_DIR/core/src/mem/mod.rs:LL:COL
48 
- error[E0275]: overflow evaluating the requirement `<() as Foo>::Item == _`
+ error: the type `<() as Foo>::Item` is not well-formed
+    |
+    |
+ LL |     drop(<() as Foo>::copy_me(&x));
+ 
+ 
+ error: the type `<() as Foo>::Item` is not well-formed
51    |
51    |
52 LL |     drop(<() as Foo>::copy_me(&x));
53    |          ^^^^^^^^^^^^^^^^^^^^^^^^
-    |
-    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`)
56 
- error[E0275]: overflow evaluating the requirement `<() as Foo>::Item: Sized`
+ error[E0277]: the size for values of type `<() as Foo>::Item` cannot be known at compilation time
59    |
59    |
60 LL |     drop(<() as Foo>::copy_me(&x));
-    |          ^^^^^^^^^^^^^^^^^^^^
+    |          ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
62    |
62    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`)
+    = help: the trait `Sized` is not implemented for `<() as Foo>::Item`
65 
- error: aborting due to 7 previous errors
+ error: aborting due to 8 previous errors
67 
---
To only update this specific test, also pass `--test-args traits/new-solver/alias-bound-unsound.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/traits/new-solver/alias-bound-unsound.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/new-solver/alias-bound-unsound" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/new-solver/alias-bound-unsound/auxiliary" "-Ztrait-solver=next"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `<() as Foo>::Item: Copy` is not satisfied
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:18:17
LL |     type Item = String where String: Copy;
LL |     type Item = String where String: Copy;
   |                 ^^^^^^ the trait `Copy` is not implemented for `<() as Foo>::Item`
note: required by a bound in `Foo::Item`
  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:8:16
   |
LL |     type Item: Copy
LL |     type Item: Copy
   |                ^^^^ required by this bound in `Foo::Item`

error: the type `&<() as Foo>::Item` is not well-formed
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:24:31
   |
LL |     drop(<() as Foo>::copy_me(&x));

error[E0308]: mismatched types
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:24:31
   |
   |
LL |     drop(<() as Foo>::copy_me(&x));
   |          -------------------- ^^ types differ
   |          arguments to this function are incorrect
   |
   |
   = note: expected reference `&<() as Foo>::Item`
note: associated function defined here
  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:12:8
   |
   |
LL |     fn copy_me(x: &Self::Item) -> Self::Item {


error: the type `<() as Foo>::Item` is not well-formed
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:24:10
   |
LL |     drop(<() as Foo>::copy_me(&x));


error[E0277]: the size for values of type `<() as Foo>::Item` cannot be known at compilation time
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:24:10
   |
LL |     drop(<() as Foo>::copy_me(&x));
   |     |
   |     required by a bound introduced by this call
   |
   |
   = help: the trait `Sized` is not implemented for `<() as Foo>::Item`
  --> /rustc/FAKE_PREFIX/library/core/src/mem/mod.rs:987:1


error: the type `<() as Foo>::Item` is not well-formed
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:24:5
   |
LL |     drop(<() as Foo>::copy_me(&x));


error: the type `<() as Foo>::Item` is not well-formed
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:24:10
   |
LL |     drop(<() as Foo>::copy_me(&x));


error[E0277]: the size for values of type `<() as Foo>::Item` cannot be known at compilation time
##[error]  --> fake-test-src-base/traits/new-solver/alias-bound-unsound.rs:24:10
   |
LL |     drop(<() as Foo>::copy_me(&x));
   |
   |
   = help: the trait `Sized` is not implemented for `<() as Foo>::Item`

error: aborting due to 8 previous errors

Some errors have detailed explanations: E0277, E0308.
---
---- [ui] tests/ui/traits/new-solver/exponential-trait-goals.rs stdout ----
diff of stderr:

- error[E0282]: type annotations needed
-   --> $DIR/exponential-trait-goals.rs:17:5
+ error[E0277]: the trait bound `W<_>: Trait` is not satisfied
3    |
3    |
4 LL |     impls::<W<_>>();
-    |     ^^^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `impls`
- 
- error[E0275]: overflow evaluating the requirement `W<_>: Trait`
-   --> $DIR/exponential-trait-goals.rs:17:5
+    |             ^^^^ the trait `Trait` is not implemented for `W<_>`
9    |
- LL |     impls::<W<_>>();
-    |
-    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`exponential_trait_goals`)
+    = help: the trait `Trait` is implemented for `W<(W<T>, W<U>)>`
14 note: required by a bound in `impls`
16    |


17 LL | fn impls<T: Trait>() {}
18    |             ^^^^^ required by this bound in `impls`
- error: aborting due to 2 previous errors
+ error: aborting due to previous error
21 
- Some errors have detailed explanations: E0275, E0282.
---
To only update this specific test, also pass `--test-args traits/new-solver/exponential-trait-goals.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/traits/new-solver/exponential-trait-goals.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/new-solver/exponential-trait-goals" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/new-solver/exponential-trait-goals/auxiliary" "-Ztrait-solver=next"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `W<_>: Trait` is not satisfied
##[error]  --> fake-test-src-base/traits/new-solver/exponential-trait-goals.rs:17:13
   |
LL |     impls::<W<_>>();
   |             ^^^^ the trait `Trait` is not implemented for `W<_>`
   |
   = help: the trait `Trait` is implemented for `W<(W<T>, W<U>)>`
note: required by a bound in `impls`
  --> fake-test-src-base/traits/new-solver/exponential-trait-goals.rs:14:13
   |
LL | fn impls<T: Trait>() {}
   |             ^^^^^ required by this bound in `impls`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/traits/reservation-impl/coherence-conflict.rs#old stdout ----
diff of stderr:

5    | ---------------------- first implementation here
6 LL | impl<T: MyTrait> OtherTrait for T {}
7    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `()`
-    = note: this impl is reserved
10 
11 error: aborting due to previous error
12 
12 


The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/reservation-impl/coherence-conflict.old/coherence-conflict.old.stderr
To only update this specific test, also pass `--test-args traits/reservation-impl/coherence-conflict.rs`


error in revision `old`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/traits/reservation-impl/coherence-conflict.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "old" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/reservation-impl/coherence-conflict.old" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/reservation-impl/coherence-conflict.old/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `OtherTrait` for type `()`
##[error]  --> fake-test-src-base/traits/reservation-impl/coherence-conflict.rs:12:1
   |
LL | impl OtherTrait for () {}
   | ---------------------- first implementation here
LL | impl<T: MyTrait> OtherTrait for T {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `()`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/traits/solver-cycles/cycle-via-builtin-auto-trait-impl.rs stdout ----
diff of stderr:

- error[E0275]: overflow evaluating the requirement `Runtime<RootDatabase>: RefUnwindSafe`
+ error[E0119]: conflicting implementations of trait `Database` for type `RootDatabase`
2    |
2    |
-    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`cycle_via_builtin_auto_trait_impl`)
- note: required because it appears within the type `RootDatabase`
-   --> $DIR/cycle-via-builtin-auto-trait-impl.rs:13:8
-    |
- LL | struct RootDatabase {
-    |        ^^^^^^^^^^^^
- note: required for `RootDatabase` to implement `Database`
-   --> $DIR/cycle-via-builtin-auto-trait-impl.rs:17:24
-    |
12 LL | impl<T: RefUnwindSafe> Database for T {
-    |         -------------  ^^^^^^^^     ^
-    |         unsatisfied trait bound introduced here
-    |         unsatisfied trait bound introduced here
- note: required because it appears within the type `Runtime<RootDatabase>`
-   --> $DIR/cycle-via-builtin-auto-trait-impl.rs:24:8
-    |
- LL | struct Runtime<DB: Database> {
+    | ------------------------------------- first implementation here
+ ...
+ ...
+ LL | impl Database for RootDatabase {
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `RootDatabase`
22 error: aborting due to previous error
23 

- For more information about this error, try `rustc --explain E0275`.
---
To only update this specific test, also pass `--test-args traits/solver-cycles/cycle-via-builtin-auto-trait-impl.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/traits/solver-cycles/cycle-via-builtin-auto-trait-impl.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/solver-cycles/cycle-via-builtin-auto-trait-impl" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/traits/solver-cycles/cycle-via-builtin-auto-trait-impl/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `Database` for type `RootDatabase`
##[error]  --> fake-test-src-base/traits/solver-cycles/cycle-via-builtin-auto-trait-impl.rs:20:1
   |
LL | impl<T: RefUnwindSafe> Database for T {
...
...
LL | impl Database for RootDatabase {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `RootDatabase`
error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.
------------------------------------------
---
5    | ------------------------- first implementation here
6 LL | impl OtherTrait for i32 {}
7    | ^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Alias`
-    |
-    = note: upstream crates may add a new impl of trait `coherence_cross_crate_trait_decl::SomeTrait` for type `i32` in future versions
11 error: aborting due to previous error
12 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/type-alias-impl-trait/coherence_cross_crate/coherence_cross_crate.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args type-alias-impl-trait/coherence_cross_crate.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/type-alias-impl-trait/coherence_cross_crate.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/type-alias-impl-trait/coherence_cross_crate" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/type-alias-impl-trait/coherence_cross_crate/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `OtherTrait` for type `Alias`
##[error]  --> fake-test-src-base/type-alias-impl-trait/coherence_cross_crate.rs:21:1
LL | impl OtherTrait for Alias {}
   | ------------------------- first implementation here
LL | impl OtherTrait for i32 {}
   | ^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Alias`

bors · 2023-07-24T21:19:25Z

☀️ Try build successful - checks-actions
Build commit: 93b7365ab3319a5c4a78362e458267d6348b7ef2 (93b7365ab3319a5c4a78362e458267d6348b7ef2)

compiler-errors · 2023-07-24T21:20:45Z

@craterbot check crates=https://crater-reports.s3.amazonaws.com/pr-113991-1/retry-regressed-list.txt

craterbot · 2023-07-24T21:20:48Z

👌 Experiment pr-113991-2 created and queued.
🤖 Automatically detected try build 93b7365ab3319a5c4a78362e458267d6348b7ef2
🔍 You can check out the queue and this experiment's details.

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

craterbot · 2023-07-24T21:21:13Z

🚧 Experiment pr-113991-2 is now running

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

craterbot · 2023-07-24T21:27:16Z

🎉 Experiment pr-113991-2 is completed!
📊 10 regressed and 0 fixed (10 total)
📰 Open the full report.

⚠️ If you notice any spurious failure please add them to the blacklist!
ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

compiler-errors · 2023-07-25T00:54:44Z

I think the remainder of the failures are due to rust-lang/trait-system-refactor-initiative#52

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) labels Jul 24, 2023

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craterbot added S-waiting-on-crater Status: Waiting on a crater run to be completed. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 24, 2023

craterbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-crater Status: Waiting on a crater run to be completed. labels Jul 24, 2023

compiler-errors mentioned this pull request Jul 24, 2023

[Experiment] Crater run with -Ztrait-solver=next-coherence #113895

Closed

compiler-errors changed the title ~~[experiment] -Ztrait-solver=next-coherence but treating inductive cycles as error~~ [experiment] -Ztrait-solver=next-coherence but hacks that make things not fail anymore Jul 24, 2023

rust-cloud-vms bot force-pushed the crater-next-coherence-cycle-err branch from e4ce019 to 57443cd Compare July 24, 2023 15:39

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craterbot added S-waiting-on-crater Status: Waiting on a crater run to be completed. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 24, 2023

craterbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-crater Status: Waiting on a crater run to be completed. labels Jul 24, 2023

compiler-errors added 4 commits July 24, 2023 19:53

Actually enable next-coherence

e4d51d2

hacks

917a90e

treat inductive cycles as errors in new solver

999877c

Normalize if knowable

d667549

rust-cloud-vms bot force-pushed the crater-next-coherence-cycle-err branch from 57443cd to d667549 Compare July 24, 2023 19:53

craterbot added S-waiting-on-crater Status: Waiting on a crater run to be completed. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 24, 2023

craterbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-crater Status: Waiting on a crater run to be completed. labels Jul 24, 2023

compiler-errors closed this Jul 25, 2023

compiler-errors deleted the crater-next-coherence-cycle-err branch August 11, 2023 19:58

compiler-errors mentioned this pull request Aug 15, 2023

Tracking issue for -Znext-solver=coherence (next solver enablement in coherence) #114862

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lcnr mentioned this pull request Sep 4, 2024

Tracking Issue for -Znext-solver #107374

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[experiment] `-Ztrait-solver=next-coherence` but hacks that make things not fail anymore #113991

[experiment] `-Ztrait-solver=next-coherence` but hacks that make things not fail anymore #113991

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[experiment] -Ztrait-solver=next-coherence but hacks that make things not fail anymore #113991

[experiment] -Ztrait-solver=next-coherence but hacks that make things not fail anymore #113991

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[experiment] `-Ztrait-solver=next-coherence` but hacks that make things not fail anymore #113991

[experiment] `-Ztrait-solver=next-coherence` but hacks that make things not fail anymore #113991

compiler-errors commented Jul 24, 2023 •

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